完成后根据提示完成安装即可没有什么特殊的要求安装完成后如果桌面上没有对应的图标,找到如下图所示的文件夹下的rstudio.exe发送到快捷方式即可正常使用 会有一些人遇到安装完RStudio打开时显示空白的问题解决办法如下1、R语言安装指定为64位; 2、R语言和Rstudio的安装路径不要有汉字; 3、R语言和Rstudio的安装父目...
Once a function name is completed, type an opening bracket "(" and hitTab. RStudio opens a popup with the function arguments and their descriptions from the function's help file. PressingTab(orEnteror right arrow key) copies the selected argument and equals symbol to the command line and c...
问RStudio包检查失败，使用缓存的已删除信息EN[root@node1 ~]# ceph -s cluster: id: 97e...
variables)#按相同的数据标签自动合并 #查看变量缺失值情况,无缺失值为100 #apply函数,1为行,对行操作,2为列,对列操作 apply(data2, 2, function(x){sum((x))/length(x)*100}) print("查看行缺失情况,1为无确实行") #complete.cases(data2),查看行是否完整 a <- sum(!
save.image() load(.RData) Note that the load function appends (and overwrites) objects within the current workspace rather than replacing it entirely. Prior to loading you may therefore wish to clear all objects currently within the workspace. You can do so using the following command: 注意:...
Snake caserConvert a character string to snake_casesnakecaser❌Ben Marwick snorkelInsert {roxygen2} formatting to your function documentation.snorkel❌Matt DrayWebsite sortLinesSort selected lines in the editor with a number-smart algorithm.sortLines❌Dominic ComtoisDemo Gif ...
You can use the result of this function anywhere you could previously use a table name. We’ve also included better translations for Oracle, MS SQL Server, Hive and Impala. We’re working to add support for more databases over time, but adding support on your own is surprisingly easy. ...
help(package_or_function_name) or help("package_or_function_name") or ?package_or_function_name Note: we need to pass in a function name to the help function without parentheses. The Help tab will be opened with the package or object documentation. If we're checking a package, then we...
• Use the dim function to check the dimensions of a vector > mat <- matrix(x, nrow = 5, ncol = 4) > dim(mat) [1] 5 4 Dataframes • Are vectors with dimensions and variable names (attributes) • Arranged with each column as a variable and each row a case > df <- as....
Call an operation through the ODBC DSN, for instance aSELECTstatement through thedbGetQueryfunction in theDBIpackage, specifying the name of the connection variable and theSELECTstatement itself, for example from a table nameddiamondsin a schema (database) nameddefault: ...